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function showHome() {
removeSlideShow();
var homeHeader = document.createElement("div");
homeHeader.setAttribute("id", "homeHeader");
document.getElementById("window").insertBefore(homeHeader, document.getElementById("content"));
var slideShowDiv = document.createElement("div");
var images = ["slideShow/slideShow-1.jpg", "slideShow/slideShow-2.jpg", "slideShow/slideShow-3.jpg", "slideShow/slideShow-4.jpg", "slideShow/slideShow-5.jpg", "slideShow/slideShow-6.jpg", "slideShow/slideShow-7.jpg"];
homeHeader.appendChild(slideShowDiv);
startSlideShow(slideShowDiv, images);
content.innerHTML = "";
}
function startSlideShow(element, images) {
var iterator = 0;
element.setAttribute("id", "slideShowDiv");
element.setAttribute("style", "background-image: url(" + images[0] + ")");
var startInterval = setInterval(function() {
iterator++;
if (iterator == images.length) iterator = 0;
element.setAttribute("style", "background-image: url(" + images[iterator] + ")");
element.style = "background-image: url(" + images[iterator] + ")";
transition(element);
}, 3000);
}
function removeSlideShow() {
if (document.getElementById("homeHeader")) {
document.getElementById("window").removeChild(document.getElementById("homeHeader"));
}
}
function transition(element) {
element.setAttribute("style", "opacity:0.01;");
var i = 0;
var set = setInterval(function() {
i += 0.01;
element.setAttribute("style", "opacity:" + i + ";");
}, 4);
setTimeout(function() {
clearInterval(set);
element.setAttribute("style", "opacity:1;");
}, 500);
}
div#homeHeader {
background-color: #FFF;
width: 900px;
height: 280px;
border: solid 2px #F00;
border-radius: 20px;
}
div#slideShowDiv {
background-image: url(slideShow/slideShow-1.jpg);
background-color: #FFF;
width: 898px;
height: 278px;
border: solid 1px #FFF;
border-radius: 20px;
background-size: 100% 100%;
}
我想要做的就是更改背景圖片每隔3秒。代碼工作,但它不改變圖像,停留在'slideShow-1.jpg'。如果我刪除過渡(元素);部分,圖像旋轉得很好。我該怎麼做才能使它工作?我仍然是Javascript的初學者,當我變得更好的時候會學習jquery。對不起,我的語法。
在你的代碼片段中添加Html – Tushar
嘗試一次使用Style backgroundImage屬性即'element.style.backgroundImage =「url('」+ images [0] +「')」;'你還需要__move'var images = []'to global scope__ – Satpal
@Satpal - 'images'作爲函數參數傳遞,它不需要是全局的。 – Quentin